we want a progressive system people who earn more and pay more and nobody pays anything until you earn 21,000 and you don't pay back in full until you earn 35,000. people who pay back, say, 3,000 pounds a year as their earning money shouldn't be discouraged because that is in many ways the right thing to do. >> mr. dave b. perkins. >> thank you, mr. speaker. in opposition, the prime minister was clear that his book should be banned. now, last week he said i fell back on exactly the same explanations that he refused to accept when they were given to him by the previous prime minister. what's changed? >> well, what we have done is we've banned -- we have banned the book and we have taken action. as my right honorable friend the lord chancellor will hastily testify, it is endlessly frustrating that we are subject to so many legal requirements. but i'm afraid we have to be a government under the law.